CUED Publications database

Adaptive BDDC in Three Dimensions

Mandel, J and Sousedík, B and Šístek, J (2009) Adaptive BDDC in Three Dimensions. Math. Comput. Simulation, 82(10):1812-1831, 2012.

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Abstract

The adaptive BDDC method is extended to the selection of face constraints in three dimensions. A new implementation of the BDDC method is presented based on a global formulation without an explicit coarse problem, with massive parallelism provided by a multifrontal solver. Constraints are implemented by a projection and sparsity of the projected operator is preserved by a generalized change of variables. The effectiveness of the method is illustrated on several engineering problems.

Item Type: Article
Uncontrolled Keywords: math.NA math.NA 65N55, 65F08 G.1.3
Subjects: UNSPECIFIED
Divisions: Div D > Structures
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:30
Last Modified: 10 Mar 2014 16:42
DOI: 10.1016/j.matcom.2011.03.014

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